@InProceedings{hilsmann2007_cvmp,
  author       = {A. Hilsmann and P. Eisert},
  title        = {Deformable Object Tracking Using Optical Flow Constraints},
  booktitle    = {Proc. 4th International Conference on Visual Media Production (CVMP 2007)},
  address      = {London, UK},
  year         = {2007},
  month        = {November}
}